目的：探究白内障患者人工晶状体(IOL)植入后Kappa角变化趋势及与IOL稳定性的关系。

方法：选择2023-02/2024-01于我院接受IOL植入的白内障患者120例120眼为研究对象，其中左眼56眼，右眼64眼。比较手术前后眼科检查结果、Kappa角的分布，以及术后不同时点Kappa角变化和IOL稳定性。Pearson相关及多重线性回归分析IOL旋转稳定性与各眼科检查指标的相关性。多元线性回归分析Kappa角与IOL稳定性的相关性并绘制变化趋势图。

结果：术后Kappa角逐渐减小且减小程度逐渐降低(均P<0.05)，IOL旋转度数也逐渐减小(P<0.05)。术后2 mo IOL旋转度数与术后1 d AL、LT、K1、K2、PD、Kappa角呈正相关(均P<0.05)，与术后1 d ACD呈负相关(均P<0.05)。术后1 d AL、ACD、PD、Kappa角对IOL旋转度数产生显著影响(均P<0.05)。随着Kappa角增大，IOL旋转度数逐渐增大，即IOL稳定性逐渐降低(P<0.05)。

结论：白内障患者IOL植入后Kappa角显著减小，前期减小幅度较大，而后趋于稳定，IOL稳定性随Kappa角的增大而降低。

METHODS: A total of 120 patients(120 eyes)with cataract who received IOL implantation in our hospital from February 2023 to January 2024 were selected as the research objects, including 56 left eyes and 64 right eyes. The results of ophthalmic examination, the distribution of angle Kappa, the changes of angle Kappa and the stability of IOL at different time points before and after operation were compared. Pearson correlation analysis and multiple linear regression analysis were used to analyze the correlation between IOL rotational stability and ophthalmic examination indexes. Multiple linear regression analysis was used to analyze the correlation between angle Kappa and IOL stability.

RESULTS: After surgery, angle Kappa decreased and the degree of decrease decreased gradually(all P<0.05), and the IOL rotation degree also decreased gradually(P<0.05). The degree of IOL rotation at 2 mo after surgery was positively correlated with axial length(AL), lens thickness(LT), horizontal keratometer(K1), vertical keratometer(K2), pupil diameter(PD)and angle Kappa at 1 d after surgery(all P<0.05), and negatively correlated with anterior chamber depth(ACD)at 1 d after surgery(all P<0.05). AL, ACD, PD and angle Kappa had significant effects on IOL rotation degree(all P<0.05). With the increase of angle Kappa, the degree of IOL rotation gradually increased, that is, the stability of IOL gradually decreased(P<0.05).

CONCLUSION: Angle Kappa decreased significantly after IOL implantation in cataract patients, and then tended to be stable. The stability of IOL decreased with the increase of angle Kappa.